PPAPI/NaCl: Make ImageData for NaCl just use shared memory

webkit/plugins/ppapi/ppapi_plugin_instance.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
@@ skipping 835 matching lines @@
     gfx::Rect* clip) {
   if (!always_on_top_)
     return false;
   if (!GetBoundGraphics2D() || !GetBoundGraphics2D()->is_always_opaque())
     return false;
 
   // We specifically want to compare against the area covered by the backing
   // store when seeing if we cover the given paint bounds, since the backing
   // store could be smaller than the declared plugin area.
   PPB_ImageData_Impl* image_data = GetBoundGraphics2D()->image_data();
+  // ImageDatas created by NaCl don't have a PlatformImage, so can't be
+  // optimized this way.
+  if (!image_data->PlatformImage())
+    return false;
   gfx::Rect plugin_backing_store_rect(
       PP_ToGfxPoint(view_data_.rect.point),
       gfx::Size(image_data->width(), image_data->height()));
 
   gfx::Rect clip_page = PP_ToGfxRect(view_data_.clip_rect);
   clip_page.Offset(PP_ToGfxPoint(view_data_.rect.point));
   gfx::Rect plugin_paint_rect = plugin_backing_store_rect.Intersect(clip_page);
   if (!plugin_paint_rect.Contains(paint_bounds))
     return false;
 
-  *dib = image_data->platform_image()->GetTransportDIB();
+  *dib = image_data->PlatformImage()->GetTransportDIB();
   *location = plugin_backing_store_rect;
   *clip = clip_page;
   return true;
 }
 
 string16 PluginInstance::GetSelectedText(bool html) {
   // Keep a reference on the stack. See NOTE above.
   scoped_refptr<PluginInstance> ref(this);
   if (!LoadSelectionInterface())
     return string16();
@@ skipping 1347 matching lines @@
   screen_size_for_fullscreen_ = gfx::Size();
   WebElement element = container_->element();
   element.setAttribute(WebString::fromUTF8(kWidth), width_before_fullscreen_);
   element.setAttribute(WebString::fromUTF8(kHeight), height_before_fullscreen_);
   element.setAttribute(WebString::fromUTF8(kBorder), border_before_fullscreen_);
   element.setAttribute(WebString::fromUTF8(kStyle), style_before_fullscreen_);
 }
 
 }  // namespace ppapi
 }  // namespace webkit